Bhagavad Gita 2.69

The saint is awake when the world sleeps, and he disregards that for which the world lives.

या निशा सर्वभूतानां तस्यां जागर्ति संयमी।
यस्यां जाग्रति भूतानि सा निशा पश्यतो मुनेः॥

yā niśā sarvabhūtānāṃ tasyāṃ jāgarti saṃyamī|
yasyāṃ jāgrati bhūtāni sā niśā paśyato muneḥ||

English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).